My family has very strong women. My mother never laughed at my dream of Africa, even though everyone else did because we didn't have any money, because Africa was the 'dark continent', and because I was a girl.
I don't spend that much time being introspective, believe it or not. All I know is that I grew up not questioning God because that's how you are. God was there like the birds and the wind.
What you do makes a difference, and you have to decide what kind of difference you want to make.
I had been told from school onwards that the best definition of a human being was man the tool-maker - yet I had just watched a chimp tool-maker in action. I remember that day as vividly as if it was yesterday.
I think the most important thing is to keep active and to hope that your mind stays active.
It was because the chimps are so eye-catching, so like us and teach us so much that my work was recognised worldwide.
